Mentor

(See The Mentor for the Australian] fanzine.)

Mentor was an imprint of The New American Library (NAL) which published mostly reprints of non-fiction works. The Mentor slogan was "Good reading for the millions."

One of the early Mentor titles of interest to SF readers was Life on Other Worlds (1949) by H. Spencer Jones, at the time Britain's Astronomer Royal.

Other early Mentor titles of interest to SF fans were The Birth and Death of the Sun by George Gamow and The Universe and Dr. Einstein by Lincoln Barnett.